ConditionalStatements represents all combinations of 'if', 'else' and 'else if' syntax and semantics. A single ConditionalStatement only ever represents up to two branches; an 'if' (true) and an optional 'else' (false). ConditionalStatements are nested within the second 'else' branch to support 'else if' logic. As well as both 'if' and 'else' branches, a ConditionalStatement also holds an Expression related to its primary condition.
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| ConditionalStatement (Expression *conditional, Block *trueBlock, Block *falseBlock=nullptr) |
| Construct a new ConditionalStatement with an Expression representing the primary condition, a Block representing the 'true' branch and an optional Block representing the 'false' branch. Ownership of all arguments is transferred to the ConditionalStatement. All arguments have their parent data updated. More...
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| ConditionalStatement (const ConditionalStatement &other) |
| Deep copy constructor for an ConditionalStatement, performing a deep copy on the condition and both held branches (Blocks), ensuring parent information is updated. More...
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| ~ConditionalStatement () override=default |
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ConditionalStatement * | copy () const override final |
| The deep copy method for a Node. More...
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NodeType | nodetype () const override |
| Virtual method for accessing node type information. More...
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const char * | nodename () const override |
| Virtual method for accessing node name information. More...
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const char * | subname () const override |
| Virtual method for accessing node name information. More...
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const Statement * | basetype () const override |
| Virtual method for accessing a node's base class. Note that if this is called explicitly on an instance of ast::Node (the top most base class) a nullptr is returned. This is primarily used by the Visitor to support hierarchical visits. More...
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size_t | children () const override final |
| Virtual method for accessing child information. Returns the number of children a given AST node owns. More...
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const Statement * | child (const size_t i) const override final |
| Virtual method for accessing child information. Returns a const pointer to a child node at the given index. If the index is out of range, a nullptr is returned. More...
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bool | replacechild (const size_t i, Node *node) override final |
| Virtual method that attempted to replace a child at a given index with a provided node type. More...
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bool | hasFalse () const |
| Query if this ConditionalStatement has a valid 'false' branch. More...
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size_t | branchCount () const |
| Query the number of branches held by this ConditionalStatement. This is only ever 1 or 2. More...
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const Expression * | condition () const |
| Access a const pointer to the ConditionalStatements condition as an abstract expression. More...
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const Block * | trueBranch () const |
| Access a const pointer to the ConditionalStatements 'true' branch as a Block. More...
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const Block * | falseBranch () const |
| Access a const pointer to the ConditionalStatements 'false' branch as a Block. More...
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template<typename NodeT > |
bool | isType () const |
| Query whether or not this node is of a specific (derived) type. This method should be used to check if a node is of a particular abstract type. When checking concrete types, it's generally more efficient to check the return value of Node::nodetype() More...
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int64_t | childidx () const |
| Returns the child index of this node in relation to its parent, or -1 if no valid index is found (usually representing the top most node (i.e. Tree) More...
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bool | replace (Node *node) |
| In place replacement. Attempts to replace this node at its specific location within its Abstract Syntax Tree. On a successful replacement, this node is destroyed, the provided node is inserted in its place and ownership is transferred to the parent node. No further calls to this node can be made on successful replacements. More...
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const Node * | parent () const |
| Access a const pointer to this nodes parent. More...
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void | setParent (Node *parent) |
| Set this node's parent. This is used during construction of an AST and should not be used. More...
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ConditionalStatements represents all combinations of 'if', 'else' and 'else if' syntax and semantics. A single ConditionalStatement only ever represents up to two branches; an 'if' (true) and an optional 'else' (false). ConditionalStatements are nested within the second 'else' branch to support 'else if' logic. As well as both 'if' and 'else' branches, a ConditionalStatement also holds an Expression related to its primary condition.
- Note
- The first 'if' branch is referred to as the 'true' branch. The second 'else' branch is referred to as the 'false' branch.